Preoperative magnetic resonance imaging findings of myoma as risk factors for bleeding during laparoscopic myomectomy

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Abstract

<p>Objectives: The objective of this study was to identify the correlation between preoperative magnetic resonance imaging (MRI) findings of myoma and the incidence of bleeding during laparoscopic myomectomy (LM).</p><p>Methods: We investigated the preoperative MRI findings of 25 patients who underwent LM from January 2012 to December 2014, including patients who had undergone myoma resection. We evaluated the correlations between perioperative blood loss and the size of the myoma as well as between perioperative blood loss and the maximal minor axis of flow void (MMAFV) of the myoma margins.</p><p>Results: The mean diameters of the myomas were as follows: longest axis, 60.4 ± 20.6 mm; occipitofrontal diameter, 55.0 ± 15.7 mm; upper and lower diameters (ULDs), 53.7 ± 19.3 mm; and transverse diameter, 56.5 ± 21.7 mm. The mean MMAFV was 2.1± 0.9 mm. The estimated mean blood loss was 104.9 g (range, 5–450 g). All myoma diameters showed a significant linear positive correlation with the estimated perioperative blood loss. The correlation of the ULDs was the highest among all myoma diameters (r = 0.59, P = 0.0021). The MMAFV showed a significant linear positive correlation with the estimated perioperative blood loss (r = 0.62, P = 0.0010).</p><p>Conclusions: Our results suggest that the ULDs and MMAFV of the myoma margins are risk factors for bleeding during LM, as determined using preoperative MRI.</p>

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